Why is the meaning of Stonehenge still a mystery

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.

The immigration act of 1924 was considered outdated by the 1960s

1a one-year-old child can classify animals and people. select the best answer from the choices provided ot